It states that Barcelona would eventually pay £64.98 million (€82.3million) to sign the striker from Anfield, with the fee payable in five equal instalments.

Luis Suarez is announced as a Barcelona player

Four of these have already been made, with the last - worth almost £13million - due to be paid on July 31.

There is no record of any additional clause or sell-on fee in the deal, which is relatively unusual for a transfer of that size, although that may be linked to the fact that Suarez was banned from competitive football at the time of the transfer.

The Uruguayan was being punished for biting Italy defender Giorgio Chiellini during the World Cup in Brazil.

Suarez's fee confirms him as the fourth most expensive player in history, behind his Barcelona team-mate Neymar and Real Madrid's Cristiano Ronaldo and Gareth Bale.

Cristiano Ronaldo (left) and Gareth Bale are the world's two most expensive players

The striker's move to Barcelona was voted the best deal made in La Liga in the 2014-15 season in a poll by Marca readers last May.

Suarez has struck up a formidable alliance with Neymar and Lionel Messi, scoring 68 goals in 86 appearances in all competitions. He won the treble of Champions League, La Liga and Copa del Rey last season and is well placed to repeat the feat this year.

Barca are through to the Champions League quarter-finals, where they will face Atletico Madrid, and they are 10 points clear of the same opponents at the top of La Liga going into this weekend's Clascio.